Head-to-Head Comparison Between [68Ga]Ga-DOTA.SA.FAPi And [18F]F-FDG PET/CT Imaging in Patients With Sarcoma.

IF 9.6 3区医学 Q1 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Clinical Nuclear Medicine Pub Date : 2025-01-29 DOI:10.1097/RLU.0000000000005697

Mohammad Sakir, Sanjana Ballal, Sameer Rastogi, Madhav Prasad Yadav, Frank Roesch, Kunal Chandekar, Priyanka Gb, Madhavi Tripathi, Ayan Dhiman, Mehul Taggar, Marcel Martin, Chandrasekhar Bal

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引用次数: 0

Abstract

Purpose: This study aimed to compare the diagnostic efficacy of [68Ga]Ga-DOTA.SA.FAPi and [18F]F-FDG PET/CT for detecting primary and metastatic lesions in sarcoma patients.

Materials and methods: The analysis included both patient-based and lesion-based comparisons of PET/CT scans in individuals with histologically confirmed sarcoma.

Results: A total of 23 sarcoma patients (mean age 43.0 ± 16.5 years; range: 21-76 years) underwent both [18F]F-FDG and [68Ga]Ga-DOTA.SA.FAPi PET/CT scans. Histological distribution included 30% synovial sarcoma, 13% liposarcoma, and 21.7% leiomyosarcoma, with 70% of patients presenting with distant metastases. Detection rates for primary tumors were similar between [68Ga]Ga-DOTA.SA.FAPi and [18F]F-FDG PET/CT (85.7% vs 100%, P = 0.149). Lymph node detection rates were also comparable (80% vs 100%, P = 0.146). Lesion-based analysis revealed that [68Ga]Ga-DOTA.SA.FAPi detected 220 lesions (83% efficiency) compared with 249 lesions (94% efficiency) for [18F]F-FDG (P < 0.0001). Notably, [68Ga]Ga-DOTA.SA.FAPi demonstrated superior detection of liver (54 vs 38 lesions, P < 0.0001) and bone metastases (125 vs 102 lesions, P < 0.0001).

Conclusion: Our study shows that although [18F]F-FDG PET/CT offers superior overall lesion detection efficiency, [68Ga]Ga-DOTA.SA.FAPi PET/CT excels in identifying specific metastatic sites, particularly in bone and liver. These findings highlight the complementary roles of both imaging modalities in sarcoma evaluation.

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来源期刊

Clinical Nuclear Medicine 医学-核医学

CiteScore

2.90

自引率

31.10%

发文量

1113

审稿时长

2 months

期刊介绍： Clinical Nuclear Medicine is a comprehensive and current resource for professionals in the field of nuclear medicine. It caters to both generalists and specialists, offering valuable insights on how to effectively apply nuclear medicine techniques in various clinical scenarios. With a focus on timely dissemination of information, this journal covers the latest developments that impact all aspects of the specialty. Geared towards practitioners, Clinical Nuclear Medicine is the ultimate practice-oriented publication in the field of nuclear imaging. Its informative articles are complemented by numerous illustrations that demonstrate how physicians can seamlessly integrate the knowledge gained into their everyday practice.